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from unittest import mock
from django.test import TestCase, override_settings
from django.urls import path
from rest_framework.decorators import action
from rest_framework.routers import SimpleRouter
from rest_framework.serializers import ModelSerializer
from rest_framework.utils import json
from rest_framework.utils.breadcrumbs import get_breadcrumbs
from rest_framework.utils.formatting import lazy_format
from rest_framework.utils.urls import remove_query_param, replace_query_param
from rest_framework.views import APIView
from rest_framework.viewsets import ModelViewSet
from tests.models import BasicModel
class Root(APIView):
pass
class ResourceRoot(APIView):
pass
class ResourceInstance(APIView):
pass
class NestedResourceRoot(APIView):
pass
class NestedResourceInstance(APIView):
pass
class CustomNameResourceInstance(APIView):
def get_view_name(self):
return "Foo"
class ResourceViewSet(ModelViewSet):
serializer_class = ModelSerializer
queryset = BasicModel.objects.all()
@action(detail=False)
def list_action(self, request, *args, **kwargs):
raise NotImplementedError
@action(detail=True)
def detail_action(self, request, *args, **kwargs):
raise NotImplementedError
@action(detail=True, name='Custom Name')
def named_action(self, request, *args, **kwargs):
raise NotImplementedError
@action(detail=True, suffix='Custom Suffix')
def suffixed_action(self, request, *args, **kwargs):
raise NotImplementedError
router = SimpleRouter()
router.register(r'resources', ResourceViewSet)
urlpatterns = [
path('', Root.as_view()),
path('resource/', ResourceRoot.as_view()),
path('resource/customname', CustomNameResourceInstance.as_view()),
path('resource/<int:key>', ResourceInstance.as_view()),
path('resource/<int:key>/', NestedResourceRoot.as_view()),
path('resource/<int:key>/<str:other>', NestedResourceInstance.as_view()),
]
urlpatterns += router.urls
@override_settings(ROOT_URLCONF='tests.test_utils')
class BreadcrumbTests(TestCase):
"""
Tests the breadcrumb functionality used by the HTML renderer.
"""
def test_root_breadcrumbs(self):
url = '/'
assert get_breadcrumbs(url) == [('Root', '/')]
def test_resource_root_breadcrumbs(self):
url = '/resource/'
assert get_breadcrumbs(url) == [
('Root', '/'), ('Resource Root', '/resource/')
]
def test_resource_instance_breadcrumbs(self):
url = '/resource/123'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource Root', '/resource/'),
('Resource Instance', '/resource/123')
]
def test_resource_instance_customname_breadcrumbs(self):
url = '/resource/customname'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource Root', '/resource/'),
('Foo', '/resource/customname')
]
def test_nested_resource_breadcrumbs(self):
url = '/resource/123/'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource Root', '/resource/'),
('Resource Instance', '/resource/123'),
('Nested Resource Root', '/resource/123/')
]
def test_nested_resource_instance_breadcrumbs(self):
url = '/resource/123/abc'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource Root', '/resource/'),
('Resource Instance', '/resource/123'),
('Nested Resource Root', '/resource/123/'),
('Nested Resource Instance', '/resource/123/abc')
]
def test_broken_url_breadcrumbs_handled_gracefully(self):
url = '/foobar'
assert get_breadcrumbs(url) == [('Root', '/')]
def test_modelviewset_resource_instance_breadcrumbs(self):
url = '/resources/1/'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource List', '/resources/'),
('Resource Instance', '/resources/1/')
]
def test_modelviewset_list_action_breadcrumbs(self):
url = '/resources/list_action/'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource List', '/resources/'),
('List action', '/resources/list_action/'),
]
def test_modelviewset_detail_action_breadcrumbs(self):
url = '/resources/1/detail_action/'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource List', '/resources/'),
('Resource Instance', '/resources/1/'),
('Detail action', '/resources/1/detail_action/'),
]
def test_modelviewset_action_name_kwarg(self):
url = '/resources/1/named_action/'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource List', '/resources/'),
('Resource Instance', '/resources/1/'),
('Custom Name', '/resources/1/named_action/'),
]
def test_modelviewset_action_suffix_kwarg(self):
url = '/resources/1/suffixed_action/'
assert get_breadcrumbs(url) == [
('Root', '/'),
('Resource List', '/resources/'),
('Resource Instance', '/resources/1/'),
('Resource Custom Suffix', '/resources/1/suffixed_action/'),
]
class JsonFloatTests(TestCase):
"""
Internally, wrapped json functions should adhere to strict float handling
"""
def test_dumps(self):
with self.assertRaises(ValueError):
json.dumps(float('inf'))
with self.assertRaises(ValueError):
json.dumps(float('nan'))
def test_loads(self):
with self.assertRaises(ValueError):
json.loads("Infinity")
with self.assertRaises(ValueError):
json.loads("NaN")
@override_settings(REST_FRAMEWORK={'STRICT_JSON': False})
class NonStrictJsonFloatTests(JsonFloatTests):
"""
'STRICT_JSON = False' should not somehow affect internal json behavior
"""
class UrlsReplaceQueryParamTests(TestCase):
"""
Tests the replace_query_param functionality.
"""
def test_valid_unicode_preserved(self):
# Encoded string: '查询'
q = '/?q=%E6%9F%A5%E8%AF%A2'
new_key = 'page'
new_value = 2
value = '%E6%9F%A5%E8%AF%A2'
assert new_key in replace_query_param(q, new_key, new_value)
assert value in replace_query_param(q, new_key, new_value)
def test_valid_unicode_replaced(self):
q = '/?page=1'
value = '1'
new_key = 'q'
new_value = '%E6%9F%A5%E8%AF%A2'
assert new_key in replace_query_param(q, new_key, new_value)
assert value in replace_query_param(q, new_key, new_value)
def test_invalid_unicode(self):
# Encoded string: '��<script>alert(313)</script>=1'
q = '/e/?%FF%FE%3C%73%63%72%69%70%74%3E%61%6C%65%72%74%28%33%31%33%29%3C%2F%73%63%72%69%70%74%3E=1'
key = 'from'
value = 'login'
assert key in replace_query_param(q, key, value)
class UrlsRemoveQueryParamTests(TestCase):
"""
Tests the remove_query_param functionality.
"""
def test_valid_unicode_removed(self):
q = '/?page=2345&q=%E6%9F%A5%E8%AF%A2'
key = 'page'
value = '2345'
removed_key = 'q'
assert key in remove_query_param(q, removed_key)
assert value in remove_query_param(q, removed_key)
assert '%' not in remove_query_param(q, removed_key)
def test_invalid_unicode(self):
q = '/?from=login&page=2&%FF%FE%3C%73%63%72%69%70%74%3E%61%6C%65%72%74%28%33%31%33%29%3C%2F%73%63%72%69%70%74%3E=1'
key = 'from'
removed_key = 'page'
assert key in remove_query_param(q, removed_key)
class LazyFormatTests(TestCase):
def test_it_formats_correctly(self):
formatted = lazy_format('Does {} work? {answer}: %s', 'it', answer='Yes')
assert str(formatted) == 'Does it work? Yes: %s'
assert formatted % 'it does' == 'Does it work? Yes: it does'
def test_it_formats_lazily(self):
message = mock.Mock(wraps='message')
formatted = lazy_format(message)
assert message.format.call_count == 0
str(formatted)
assert message.format.call_count == 1
str(formatted)
assert message.format.call_count == 1
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